# Napier's Bones Simulation vs ILLUSTRATED MATH

The clearest difference is update cadence: Napier's Bones Simulation at every 25 months against ILLUSTRATED MATH's every 65 months. Napier's Bones Simulation also leads on device support (4 vs 1) and iOS requirement (12.0 vs 15.6). On price, ads and in-app purchases there is nothing between them.

Napier's Bones Simulation costs $1.99 and ILLUSTRATED MATH $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Napier's Bones Simulation ships an update every 25 months, ILLUSTRATED MATH every 65 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Napier's Bones Simulation | ILLUSTRATED MATH |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/illustrated-math-fractions/id1460783890/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 25 months** | Every 65 months |
| Monetization | — | Paid |
| Size | 29 MB | 16 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Red Hong](https://appshunter.io/developer/542314714) |

## What reviewers say

### Napier's Bones Simulation

[App page](https://appshunter.io/ios/app/napiers-bones-simulation/id1093899282)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ILLUSTRATED MATH

[App page](https://appshunter.io/ios/app/illustrated-math-fractions/id1460783890)

This app offers a visual and step-by-step approach to mastering fractions, covering concepts from basic identification to complex operations and word problems. It includes tools for practicing GCF and LCM, and a handwriting board for calculations.

**Highlights:** Visual fraction learning, Step-by-step instructions, Fraction word problems, GCF and LCM practice, Handwriting calculation board, Schoolwork app integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Napier's Bones Simulation free?

Napier's Bones Simulation costs $1.99, with no in-app purchases.

### Is ILLUSTRATED MATH free?

ILLUSTRATED MATH costs $1.99, with no in-app purchases.

### Do Napier's Bones Simulation or ILLUSTRATED MATH have ads?

Neither Napier's Bones Simulation nor ILLUSTRATED MATH shows ads.

### Which is updated more often, Napier's Bones Simulation or ILLUSTRATED MATH?

Napier's Bones Simulation ships an update every 25 months, and ILLUSTRATED MATH every 65 months. Most recently, Napier's Bones Simulation was updated on November 6, 2026 and ILLUSTRATED MATH on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*